Evidence map›Paper›PMID 17005695›Full record

ArticleJournal of virology2006

Murine cytomegalovirus m142 and m143 are both required to block protein kinase R-mediated shutdown of protein synthesis.

Ralitsa S Valchanova, Marcus Picard-Maureau, Matthias Budt, Wolfram Brune

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
5.1field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

54 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Article
  3. Antagonism of Protein Kinase R by Large DNA Viruses.Pathogens (Basel, Switzerland) · 2022
    Review
  4. Review
  5. Article
  6. Inhibition of PKR by Viruses.Frontiers in microbiology · 2021
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
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  13. Review
  14. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Ralitsa S ValchanovaRobert Koch-Institut, Fachgebiet Virale Infektionen, Nordufer 20, 13353 Berlin, Germany.
Marcus Picard-Maureau
Matthias Budt
Wolfram Brune
University of Würzburg · DERobert Koch Institute · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cytomegaloviruses carry the US22 family of genes, which have common sequence motifs but diverse functions. Only two of the 12 US22 family genes of murine cytomegalovirus (MCMV) are essential for virus replication, but their functions have remained unknown. In the present study, we deleted the essential US22 family genes, m142 and m143, from the MCMV genome and propagated the mutant viruses on complementing cells. The m142 and the m143 deletion mutants were both unable to replicate in noncomplementing cells at low and high multiplicities of infection. In cells infected with the deletion mutants, viral immediate-early and early proteins were expressed, but viral DNA replication and synthesis of the late-gene product glycoprotein B were inhibited, even though mRNAs of late genes were present. Global protein synthesis was impaired in these cells, which correlated with phosphorylation of the double-stranded RNA-dependent protein kinase R (PKR) and its target protein, the eukaryotic translation initiation factor 2alpha, suggesting that m142 and m143 are necessary to block the PKR-mediated shutdown of protein synthesis. Replication of the m142 and m143 knockout mutants was partially restored by expression of the human cytomegalovirus TRS1 gene, a known double-stranded-RNA-binding protein that inhibits PKR activation. These results indicate that m142 and m143 are both required for inhibition of the PKR-mediated host antiviral response.

Indexed as

Protein BiosynthesisAmino Acid SequenceAnimalsDNA ReplicationDNA, ViraleIF-2 KinaseEukaryotic Initiation Factor-2Gene DeletionGene ExpressionGenes, EssentialGenes, ViralGenetic Complementation TestMiceMolecular Sequence DataMuromegalovirusNIH 3T3 CellsDNA, ViraleIF-2 KinaseEukaryotic Initiation Factor-2glycoprotein B, SimplexvirusTRS1 protein, Human herpesvirus 5Viral Envelope ProteinsViral Proteins

Identifiers

PMID17005695
PMCPMC1617306
OpenAlexW1994769674

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.